Feed-guide for printing-presses



(No Model.) 7

J. BLOGHER.

FEED GUIDE FOR PRINTING PRESSES.

No. 298,164. Patented Mayfi, 1884.

WITNESSES Jlttorney N. PETERS. PMlo-Lmmphr. Wnhhm D C.

JOHN BLOGHER, OF FRANKLIN GROVE, ASSIGNOR'OF ONE-HALF TO BENJAMIN F.SHAW, OF DIXON, ILLINOIS.

FEED-GUIDE FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 298,16 dated May 6,1884.

(N0 model.)

To aZZ whom it may concern Be it known that I, JOHN BLOOHER, a citizenof the United States, residing at Franklin Grove, in the county of Leeand State of Illinois, have invented certain new and useful Improvementsin. Feed-Guides for Printing- Presses; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, in which Figure 1 is aperspective view of a platen of a printing-press, showing my inventionapplied thereto; and Fig. 2, aperspective view, in detail, of one of thebottom guides with the spring-clamp to which it is attached partlybroken away.

The present invention has relation to that class of platens forprinting-presses provided with adjustable guides for holding the sheetof paper in position to take the impression. It is well known that whenprinting in colors, in order to secure accurate register of the paper,extreme care is required in feeding it to the platen.

The object of the invention is to provide means whereby this care andnicety in feeding the paper to the platen is rendered unnecessary,whichobject I attain by the construction substantially as shown in thedrawings and hereinafter described and claimed.

In the accompanying drawings, A represents a platen of a printing-pressprovided with suitable pivoted bands, B, for holding thereon theusualplaten-paper, said platen being pivoted in the ordinary manner tothe ends of the gripping-finger bar 0. These several parts are all ofthe ordinary construction, and form no part of my invention, other thanshowing its application to a platen, and also its operation inconnection with the grippingfinger bar. Thelower or bottom pivoted bandB may ,be cast with or otherwise have connected to it a rod, a, and theupper one of the bands a short rod, 12, the former extending the entirelength of the platen, while the latter extends only a portion of itslength. The rod a is for retaining on the platen suitable metalspring-clamps, D, to the inner sides of which are pivoted the outer endsof arms E of the foot or bottom guides. A shorter but similar arm, F, ofthe side guide is pivoted near its center to a metal strap, G, extendingacross the platen A, and having its ends bent to hook under and over therods to b, to retain it in place on the platen, and at the same timeadmit of its longitudinal adjustment. The outer extremity of the arm Fis pivoted to the free or upper end of a bar, H, said bar at itsopposite end having an eye to slide on the horizontal portion of a bentrod, I, said rod being lengthwise of the platen by sliding along the roda the clamps, which carry with them the r arms, the clamps and armsbeing also readily removable from the platen when found necessary. Thearms E and F, the strap G, and the bar H are all made of spring metal,and especially is this important with the arms of the guides, in orderthat they shall bear down sufliciently on the platen-paper to retainthem in position by frictional contact therewith. The arms E and F areeach provided with pivoted gage-heads K, preferably convex on theirunder side, and connected to the arm j ust tight enough to keep them inany position the pressman may wish to turn them, in order that thepivoted tongues L at their points may be retained toward the feeder whenprinting jobs with wide margins, and turned entirely out of the way ofthe type when printing forms with narrow margins. The gage-heads K haveupon their upper side diametrical grooves d, as shown more clearly inFig. 2, these grooves forming seats for the tongues L to retain them inposition with relation to the heads, and prevent them from being twistedlaterally out of shape. The tongues L are so balanced that when theplaten A is in the proper position for feeding, their points will be inan elevated position about a quarter of an inch from the tynipan orplaten sheets, so that envelopes or other like material may be easilyfed under them, and when the impression is being taken they willdropclose to the platen, out of the way of the furniture. The employment ofthe tongues L,and connecting them to the gageheads K, so as to renderthem automatic in their action, I consider important as an, attach- IOOposition to take the impression, as shown in down, as shown in dottedlines.

ment to the guides, as are also the adjustable heads K, hereinbeforedescribed. The important feature, however, of my invention, or the one Imost rely on for the successful operation of the device, is theautomatic action of the feed-guide upon the end or side of the platen.This automatic action of the side guide 1 preferably obtain through themedium of the bar H, connected to the stationary gripping-finger bar 0,by a rod or any other suitable fastening.

The paper to take the impression is represented at X, and after beingplaced upon the platen as thelatter is being raised to the form throughthe action of the bar H, the side guide will automatically assume aposition as indicated in dotted lines, Fig. 1, causing the paper X to beaccurately placed in registering dotted lines. By this automaticadjustment of g the paper, as the platen moves up to the form everysheet will register perfectly, whether fed against the guides or not. 7

The bottom or lower guides need never be removed from the rod a, as theydo not in the least interfere with the lifting of the pivoted band Bwhen new tympan or platen sheets are required. In order to feed sheetsso that their lower edge will extend over the bottom or lower band, B,the bottom guides are swung Having now fully described my invention,

side thereof, and connected to the grippingfinger bar of the press bymechanism substantially as described,whereby said movement of the guideis rendered automatic, substantially as and for the purpose set forth.

2. The combination, with the platen of a printingpress, of a pivotedside guide and a bar pivoted to the arm of said guide, and alsoconnected to the gripping-finger bar of the press, by meanssubstantially as described, and for the purpose specified.

f). The combination, with a pivoted side guide and a bar pivoted to thearm thereof, and connected to the gripping-finger bar of the press, ofbottom guides the arms of which are pivoted to spring-clamps adjustableupon 5 a rod on the lower band of the platen, substantially as and forthe purpose described.

4. The side and bottom guides for a printingpress, provided withadjustable gageheads carrying suitable tongues pivoted thereto,substantially as and for the purpose set forth.

1 JOHN iLOCHER.

\Vitnesses:

GEO. H. TAYLOR, RICHARD Y. TOLMA'N.

